Double cutter hair clipper



Oct. 11, 1949. J. cRoMoNlc 2,484,610

nouam cum-an HAIR 01.1mm Filed Sept. 25, 1945' 2 Sheets-Sheet 1 a? 3/ 3a; 34 INVENTOR Oct. 11', 1949. J. cRoMomc 2,434,610

DOUBLE CUTTER HAIR CLIPPER I Filed Sept. 25, 1945 2 Sheets-Sheet 2 INVENTOR J osspu Caomomc BY 9. l

I ATTO-RNEY Patented Oct. 11, 1949 UNITED STATES PATENT OFFICE DOUBLE CUTTER HAIR CLIPPER Joseph Cromonic, Brooklyn, N. Y.

Application September 25, 1945, Serial No. 618,512

9 Claims. (01. 30223) 1, This invention relates to new and useful im provements in a hair clipper, and more particularly to an electrically operated hair clipper.

More specifically, the present invention proposes the construction of a hair clipper having a comb blade having teeth along two opposite edges, the teeth along one edge being finer than the teeth along the other edge and the blade being pivotally mounted so that it may be rotated to bring either set of teeth into operation.

A further object is to provide a hair clipper as aforesaid having improved latch means for fastening the clipping mechanism to the holder therefor.

For further comprehension of the invention, and of the objects and advantages thereof, reference will be had to the following description and accompanying drawings, and to the appended claims in which the various novel features of the invention are more particularly set forth.

In the accompanying drawings forming a material part of this disclosure:

Fig. l is a side view of a hair clipper constructed in accordance with this invention, the electric cord thereof being shown foreshortened.

Fig. 2 is a plan view of the clipper.

Fig. 3 is an enlarged section on the line 3-3 of Fig. 2, parts being indicated in dot-dash lines.

Fig. 4 is an enlarged perspective view of the latch mechanism of the clipper, the handle being shown fragmentally.

Fig. 5 is an enlarged inside view of the clipping mechanism.

Fig. 6 is an enlarged perspective view of the comb blade of the clipper.

Fig. 7 is a section on the line l-l of Fig 6.

Fig. 8 is an enlarged section, showing the cutting blade and comb blade superposed, the alternate position of the cutting blade being indicated in dot-dash lines.

Fig. 9 is an enlarged perspective view of the cutting blade.

Fig. 10 is an enlarged perspective view of the cutter blade support plate of the clipper.

Fig. 11 is an enlarged perspective view of the latch part of the cutting mechanism.

The hair clipper, according to this invention, comprises a body or handle [0 having mounted thereon at one end a hood 10. which carries a vibrator l l actuated by the usual electric vibrator motor (not shown) to which current is fed by the electric cord l2. end face l3 to which is secured a latch part [4.

Latch part I4 is best shown in Fig. 4; with which view the. dot and dash showings of Fig. 3

The body has an inclined should be compared. It includes a hook part l5 secured to the body as by screws l6 such hook providing a socket. Lateral wings I! stand out from part [5. The forward end of part I5 is integral with a shoulder l8 and thereabove a part l9 terminating at its forward end in an angular flange 2i] spaced from the vibrator I l as indicated at 2| inFig. 4.

The remainder of the clipper constitutes the clipping mechanism, which is adapted to snap on the latch part l4 and to be thereby held to the body. It includes a support plate 22, see Figs. 3 and 10. This plate has two spaced apertures 23 and 24. The front end of the plate 22 is bent to form a groove 25, there being a front flange 26 and a tension lip 21 integral therewith. The groove 25 forms the forward side of a laterally extending guideway for the cutter blade hereinafter described. Rearwardly of the flange 26 are side bars 28 formed along parts of their lengths by reversely bent portions of the plate 22, thusproviding a pair of recesses 29 which provide more tension, the plate 22 being cut out to provide a central opening 30, thereby to establish the side bars 28.

A comb blade 3|, best shown in Fig. 6, is secured to the plate 22 by a bolt 32 passing through an aperture 33 in the blade 3| and through the aperture 23 in the plate 22 and also through an aperture in another member overlying the plate 22 and to be described in a moment. A shoWn in Fig. 3, the head of the bolt is countersunk in the blade and a nut secures the plate and blade toether.

The comb blade 3| has, along two opposed edges, a row of fine teeth 34 and a row of coarse teeth 35. Course is used to mean wider and thicker in depth. Running parallel With the rows of teeth and outwardly of the aperture 33 are grooves 36. Between the grooves 36 and on opposite sides of the aperture 33 are two recesses 31.

When the comb blade and support plate are superposed, the tension lip 21 is spaced from the blade. A cutter blade 38, best shown in Fig. 9, is for endwise reciprocation in the slideway above mentioned, and which slideway as aforesaid has its front side provided by the groove 25. This slideway, as seen in Fig. 3, is between the comb blade 3| and the support plate 22. The cutter blade 38 has a socket 39 for receiving the end of the vibrator ll, whereupon the vibrator can reciprocate the cutter blade back and forth rapidly in the slideway including the groove 25. The vibrator also retains the cutter blade in place.

The cutter blade has. a row of teeth 40 for co- 3 acting with the forwardly disposed row of comb blade teeth. It also has a track All, such track interrupted intermediate its end to provide the socket 39; said track fitting in the groove 25. There is a surface 42 on the cutter blade ahead of the track H against which the tension lip 2'! bears lightly. The ends of this surface 42 are obliquely notched at 43, in line with the tension lip 21 so that at each limit of movement of the cutter blade 3:8 one end?v or the other? of the lipZ'I' will have adjacent thereto one of the notches 36 of the cutter blade.

A cutting mechanism latch part 44, best shown in Fig. 11, with which Fig. 3 should be compared,- is secured to the support plate by means of, a bolt 45 passing through the aperture 24 in the plate '22 (Fig. and through a matching aperture. in the latch part 34; as best seen in Fig 3,, Where said latch part is shown as the above referred to member which overlies the plate 22 and through which passes the bolt 32 also going throughthe aperture 23 in the plate 2'2. and the aperture 33 in the comb blade I-; The bolt 35' is so located that its head may be nested in one or the other of the grooves 38 inthe' top' of the combblade 31 This latch part is made ofa single sheet of metal bent back on itself-to form a rearwardly disposed tongue to. It also has an upwardly extending tongue 41' at its front endwhich is flexible, due to the flexible. nature of the metal. Wings 48 extend r'earward'ly from anupstandinglateral wall portion 41"" which at its topcarries the tongue 41, so; placed as to engage the opposite side edges of the flangeitwhen the parts areassembled. as shown in Fig. 3;

On the latch part 4-4, forwardly of the tongue 4''! is a widely extended lateral strip 49- having upwardly extending spring-like ,Iugs ortabs 50' at its endsand', atthe juncture of the strip 49 andtabs downbent' projections 51. When this latch part 4 3 is tightly'securedt'o the plate 22; the pro-' jections 51 lie laterally outward ofthe plate 22 and fit" in the recesses 31 of the comb blade to hold it from wobbli'ng; The strip E9 has an aperture 52 through which the bolt 32passes, further securing thelatch part E4 to'- the comb blade '3I and the plate 22.

The hood P01, without the cutting mechanism, is: clearly shown in Fig. 4'; and the cutting mechanism, without the hood; is clearly shown in Fig. 5". When theparts ofFigs; 4" and-5 are latched together, the outer faces of thetabs 50 engage opposite exterior'surfaces of'th'e" hood- I U", for nositioning the part 44 relative to the hood.

To assemble, the latch part f4 (connected to the handle it by'the screws It as seen in Fig. 4-) and the latch part ift of the cutting mechanism, and nowassumin'g the parts to'be arranged as in Fig; 3', the tongue at. of the latch part is connected with the hook E5 of the latch part I4, and so as to bring the inclined'flange 20-01 the latch part ldabove the tongue-41 of'the latch part 64; Then a sli'ght'pressure is exerted, causing said flange- Zil to slip downwardly along the rear face of the tongue 2'5" tosnap-into engagement with the latteras shownin Fig. 3, thus lockingthe cutting mech anism with the holder, with the vibrator H in the recess or socket 39-. To disassemble the cut-- ting mechanism, it is merely necessary tosharply pullit away fromthe holder, causing the tongue 41 to snapiree' of the flange 20;

Assuming that the fine teeth are in active position and that it isdesired-to employ the coarse teeth of the comb: blade, azll 'thatis necessary is to lift tabs fill-atthe exterior 0t the hood l t as shown in Fig. 1, thereby to lift the projections 51 out of the recesses 3'! in the top of the comb blade 31, and turn the comb blade using bolt 32 as a fulcrum. To provide finger-grip aids near the tops of the tabs 5%, their upper ends are bent over outwardly and then down to establish outwardly projected enlargements 50'.

When turning the comb blade about the bolt 32, the fingers are placed on the sides of. the comb plade' at right angles to the teeth thereon. In order to safeguard the fingers from being cut by the cutter blade during this turning, the comb "blade is provided with lateral guard flanges 53,

see Fig;-

While I, have illustrated and described the preferred embodiments of my invention, it is to be understood thatl. do. not limit myself to the precise constructions herein disclosed and the right is reserved to all changes and modifications coming within the scope of the invention as defined in theappended claims.

Having thus described my invention, what I. claim as new, and desire tosecure by United States Letters Patent is: e

1. A hair cl-ipper'comprising a body, a. vibrator. in said-body, a latch partsecu-red to said body, and acutting mechanism having alatch-part for. 00-- acting with said body latch part to removab-ly secure said cutting mechanism to saidbody, said cutting mechanism further having a support plate secured tosaid latch'part, a oombbl ade pivoted tosaid'support plate; and a tension-held cutting blade slidable on said comb: blade and hav ing a part coacting with said vibrator for recip rocationof said cutting blade, said comb having,

along two oppositeedges, rows of teeth, one row of-teeth having more teeth than the other row.

2'. A haircli'pper comprising a body, a vibrator: in said body, a latch part secured tosaid: body,: andacutting mechanism having a latch partfor coacting' with said body latch part to: removably secure said cutting mechanism tosaid body, Said cutting mechanism further having a support plate secured to said latchpart, a comb blade: pivoted to said support plate, and a tension-held cutting blade slidable on said combblade and having a partcoacting with said vibratorv for reciprocation of said cutting blade, said comb blade having, along two opposite edges, rows: of teeth; one row ofteeth having more teeth than the other row, said body latchipart havinga. sock et at one endand-aninclinedfiange at the other end, and said cutting mechanism latch-part hav -r ing atongue fitting i ri-saidi socket and a springy tongue adapted to slide-over'said inclined flange and hook therebeneath.

3i A hair clipper comprising a body, a vibrator in-said body, a latchpart secured to said body; anda cuttingmechanism having a latch. par-ti for coacting with said body latcl r part to remov-ably secure said cutting rnechanis-mto said body said mechanism latch part including a strip traverse ing said cutting mechanism: and having spaced outwardly projecting lugsg. asupport plate se-- cured to' said mechanism latchpart and having a groove, a comb blade pivotally connected tosaidsupport plate, and a-cutting: bladeslidable in. said groove'and-resti'ng on the inner fa-ce of said comb blade, said cutting blade having apart coasting with said vibrator for reciprocation of said cut". ting blade relative to said comb: blade, said comb blade: having, along two opposite: edges; rows ofi' teeth, one row of teeth having. more teeth than the other row- A hair. clipper comprising abodyeavibrator in said body, a latchpart secured to said body, and acutting mechanism having a latch partfor coacting with said body latch part to removably secure said cutting mechanism to said body, a

support plate secured to said mechanism latch part and having a groove, a comb blade pivotally connected. to said support plate, and a cutting blade slidable in said groove and resting On the top of said comb blade, said cutting blade having an upstanding part constituting a track, said comb blade having, along two opposite edges, rows of teeth, one row of teeth having more teeth than the other row, said support plate having an upstanding transverse wall spaced rearwardly from said groove, said wall and said groove bein so shaped and arranged as to constitute the front and rear elements of a slideway for coacting with said track, said support plate having ahead of said groove a down-turned lip slidably engaging the top of said cutting blade ahead of its track.

5. A hair clipper comprising a body, a hood on said body, a vibrator in said hood, a latch part in said hood secured to said body, and a cuttin mechanism having a latch part for coacting with said body latch part to removably secure said cutting mechanism to said body, said mechanism latch part including a strip traversing said cutting mechanism, a support plate secured to said mechanism latch part and having a groove, a comb blade pivotally connected to said support plate, and a cutting blade slidable in said groove and resting on the top of said comb blade, said cutting blade having a part coacting with said vibrator for reciprocation of said cutting blade relative to said comb blade, said comb blade having, along two opposite edges, rows of teeth, one row of teeth having more teeth than the other row, said strip having end flanges overlapping the side walls of said body, said strip at opposite ends having upstanding tabs for engaging oppositely located side surfaces at the exterior of said hood when said two latch parts are coupled.

6. An electric hair clipper comprising a body, an electrically driven vibrator in said body, a latch part secured to said body, a cutting mechanism including a latch part coactive with said body latch part to removably secure said cutting mechanism to said body, a comb blade having, along opposite edges thereof, two different sets of teeth, a cutting blade mounted on said comb blade and having a part coacting with said vibrator for reciprocating said cutting blade, and a support plate connecting said cutting mechanism latch part, comb blade and cutting blade, said comb blade being pivotally connected to said plate so that it can be turned to bring either of its rows of teeth into coaction with said cutting blade, said comb blade being flat at its outer face between said rows of teeth, and inclined at said teeth, and said comb blade having lateral protecting flanges beyond opposite ends of and at right angles to each of its rows of teeth.

'7. A hair clipper comprising a body, a vibrator in said body having an activating part, a latch part secured to said body, and a cutting mechanism having a latch part for coacting with said body latch part to removably secure said cutting mechanism to said body, a support plate secured to said mechanism latch part and having a groove, a comb blade pivotally connected to said support plate, and a cutting blade slidable in said groove and resting on the inner face of said comb blade, said cutting blade having an upstanding part constituting a track, said comb blade having, along two opposite edges, rows of teeth, one row of teethhaving -more teeth than the other row,

said'support plate having an upstanding transverse wall spaced rearwardly from said groove, said wall and said'groove being so shaped and arranged as to constitute the front and rear elements of a slideway for coacting with said track, said support plate. having ahead of said groove a downturned lip slidably engaging thetop of said cutting blade ahead of its track, said track being interrupted to provide a socket for receiving a cutter-blade-actuating part of said vibrator, said support plate including a generally horizontal wall portion connecting said upstanding wall and the part of the support plate which carries said groove, said horizontal Wall portion having an opening, said actuating part extending through said opening into said Socket, said opening affording a field of operation for said actuating part.

8. A hair clipper comprising a body, a hood on said body, a vibrator in said hood, a latch part in said hood secured to said body, and a cutting mechanism having a latch part for coacting with said body latch part to removably secure said cutting mechanism to said body, said mechanism latch part including a strip traversing said cutting mechanism, a support plate secured to said mechanism latch part and having a groove, a comb blade pivotally connected to said support plate, and a cutting blade slidable in said groove and resting on the top of said comb blade, said cutting blade having a part coacting with said vibrator for reciprocation of said cutting blade relative to said comb blade, said comb blade having, along two opposite edges, rows of teeth, one row of teeth having more teeth than the other row, said strip having end flanges overlapping the side walls of said body, said strip at opposite ends having upstanding tabs for engaging oppositely located side surfaces at the exterior of said hood when said two latch parts are coupled, said strip being downbent to provide depending projections adjacent the lower ends of said tabs, there being recesses in the upper face of the comb blade for receiving said projections to prevent wobbling of the comb blade.

9. A hair clipper comprising a body, a hood on said body, a vibrator in said hood, a latch part in said hood secured to said body, and a cutting mechanism having a latch part for coacting with said body latch part to removably secure said cutting mechanism to said body, said mechanism latch part including a strip traversing said cutting mechanism, a support plate secured to said mechanism latch part and having a groove, a comb blade pivotally connected to said support plate, a cutting blade slidable in said groove and resting on the top of said comb blade, said cutting blade having a part coacting with said vibrator for reciprocation of said cutting blade relative to said comb blade, said comb blade having, along two opposite edges, rows of teeth, one row of teeth having more teeth than the other row, said strip having end flanges overlapping the side walls of said body, said strip at opposite ends having upstanding tabs for engaging oppositely located side surfaces at the exterior of said hood when said two latch parts are coupled, said strip being downbent to provide depending projections adjacent the lower ends of said tabs, there being recesses in the upper face of the comb blade for receiving said projections to prevent wobbling of the comb blade, said tabs having enlargements near their tops for affording grip surfaces whereby said tabs may be manually lifted to spring 

